MAC
ANGLETIE

THE
PROBLEM

Corrosion of ties or restraining systems is not unique to low rise buildings.The
problem is also seen on high rise buildings where the goalpost links or
other fixings restraining cladding panels have failed. Many of the ties
were of a type of bronze material which is susceptible to stress corrosion
and oxidization and others were incorrectly bonded into the concrete. Serious
tie failures have occurred.
It is not feasible to as certain the true state of the existing ties, and
therefore, it is essential to re-secure every panel.This must be done without
disturbing the occupants.

THE SOLUTION

The MAC ANGLETIE was designed to solve this problem and utilises the well
proven Mac expander as its fixing system.
The principle is to eliminate bending stress by angling the anchor upwards
at 450 so that the panel and wind suction forces are resisted by tension
in the tie. Far fewer ties with much smaller diameter holes results from
this principle.
The Mac Angletie has as 8mm diameter rod and all steel components used are
of A2, 300 series austenitic stainless steel.

ANGLETIE THEORY

In a traditional solution remedial anchors would be inserted horizontally
through holes drilled from the outside into the inner load bearing wall.
However, due to the insulation space, the anchor suffers from high bending
stress at X.

SPACING
DATA
The position and quantity of Angle Ties or Truss Bolt Systems will depend
on a variety of factors such as:
PANEL, LENGTH, HEIGHT, THICKNESS, WINDOWS AND WIND LOADING ON PANEL.
For futher information and technical support contact our Technical Department.